Hello out there! I'm in the design stages of building my first serious scratch build, an SE5A, WWI biplane. The target is 1/5 scale which will result in ~63" WS, and I want to power it with a 91 FS. The aircraft was "a stable gun ship" which is encouraging, but I'm a little leary of the airfoil, an RAF15, which is undercambered, and also of the positive 5 degree wing incidence. I'd really really like to keep it scale looking, and am not concerned with a bunch of non-scale aerobatics, but also want it to be a relaxing plane to fly and land. I love the undercambered appearance and really want to keep this, and the 5° incidence would be very noticeable if missing, but I'm guessing, based on the airfoil it would have some rather nasty stall characteristics, combined with a serious tendancy to climb! If I keep the airfoil, put the 5° in the bottom wing & 4° in the top, put 6° in the evevator, keeping the motor @ 0°, I'm thinking it still might work. Net result would be -1° on bottom wing, -2° on the top, and -5° on the motor. I'm new to all this, so the $50,000 question is: Am I on the right track, or out to lunch? If so, what's the solution? Any and all advice appreciated!